C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

LS1 weight savings over LT1

Thread Tools
 
Search this Thread
 
Old Apr 20, 2004 | 09:10 PM
  #1  
NitrousSam's Avatar
NitrousSam
Thread Starter
Melting Slicks
Supporting Lifetime Gold
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2003
Posts: 2,951
Likes: 3
From: Mount Vernon OH
Default LS1 weight savings over LT1

Anyone know an apx. weight difference between the LS1 and the LT1?
Reply
Old Apr 20, 2004 | 09:19 PM
  #2  
BowTieBlood's Avatar
BowTieBlood
Melting Slicks
20 Year Member
 
Joined: Dec 2001
Posts: 2,049
Likes: 0
From: Texas
Default Re: LS1 weight savings over LT1 (NitrousSam)

Some shop in Cali quoted 500 lbs with their "kit" but who knows what all that includes for a swap. I'm guessing that's not just the engine, but could be :lol:
Reply
Old Apr 20, 2004 | 09:31 PM
  #3  
TheCorvetteKid's Avatar
TheCorvetteKid
Drifting
20 Year Member
 
Joined: May 2002
Posts: 1,581
Likes: 2
From: The Motor City
Default Re: LS1 weight savings over LT1 (NitrousSam)

Anyone know an approx. weight difference between the LS1 and the LT1?
There's only about 100lbs difference - believe it or not. All of the weight savings is in the block, since both engines have aluminum heads, composite intake, steel crank/con rods, alumimum pistons, and tubular headers.

From a weight point of view, it's alot of effort to save 100lbs. But when you figure that the LS1 has an immense performance potential, the effort may be worth it.
Reply
Old Apr 20, 2004 | 09:50 PM
  #4  
NitrousSam's Avatar
NitrousSam
Thread Starter
Melting Slicks
Supporting Lifetime Gold
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2003
Posts: 2,951
Likes: 3
From: Mount Vernon OH
Default Re: LS1 weight savings over LT1 (TheCorvetteKid)

I was more curious than anything but I think taking an extra 100 lbs off the nose of a C4 could be make a difference.
Reply
Old Apr 20, 2004 | 09:53 PM
  #5  
dizwiz24's Avatar
dizwiz24
Race Director
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2001
Posts: 14,685
Likes: 753
From: NEwhere Ohio
Default Re: LS1 weight savings over LT1 (NitrousSam)

The thing about weight savings is it all adds up. 10 lbs here, 20 lbs there.

100 lbs somewhere is a lot of weight to be saved.

I also believe the LS-1 has more performance potential than the LT1. But the LT1 (especially with LT4 heads) aint bad either.
Reply
Old Apr 20, 2004 | 10:06 PM
  #6  
xs650's Avatar
xs650
Melting Slicks
Supporting Lifetime
 
Joined: Nov 2003
Posts: 3,375
Likes: 1
From: Northern CA
Default Re: LS1 weight savings over LT1 (dizwiz24)

100 lbs somewhere is a lot of weight to be saved.
A whole bleeping bunch. Production weight savings are usually in measured in ounces and a few pounds here and there and cost a lot.
Reply
Old Apr 20, 2004 | 10:12 PM
  #7  
96BLKTN's Avatar
96BLKTN
Pro
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jan 2004
Posts: 626
Likes: 2
From: Nashville
Default Re: LS1 weight savings over LT1 (xs650)

Just eat a salad and skip dinner........ :thumbs:
Reply
Old Apr 20, 2004 | 10:42 PM
  #8  
JasonL's Avatar
JasonL
Melting Slicks
 
Joined: Apr 2000
Posts: 3,198
Likes: 2
From: Northern CA
Default Re: LS1 weight savings over LT1 (96BLKTN)

Black Book says 44 lbs lighter than an LT4. The LT1 and LT4 should weigh about the same.
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

5 Best & 5 Most Overrated Corvette Track Packages of All Time!

 Joe Kucinski
story-1

Every 2027 Corvette Engine Explained

 Joe Kucinski
story-2

Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

 Verdad Gallardo
story-3

10 Ugly Corvettes That We Still Kinda Love

 Joe Kucinski
story-4

Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

 Brett Foote
story-5

10 Things Every Corvette Owner Needs (2026 Edition)

 Michael S. Palmer
story-6

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-7

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-8

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-9

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
Old Apr 20, 2004 | 11:23 PM
  #9  
xs650's Avatar
xs650
Melting Slicks
Supporting Lifetime
 
Joined: Nov 2003
Posts: 3,375
Likes: 1
From: Northern CA
Default Re: LS1 weight savings over LT1 (96BLKTN)

Just eat a salad and skip dinner........ :thumbs:
That and an aluminum block aren't mutually exclusive.
Reply
Old Apr 20, 2004 | 11:36 PM
  #10  
tobijohn's Avatar
tobijohn
Bench Racer
Supporting Member
20 Year Member
St. Jude 10 Year Donor
Liked
Loved
 
Joined: Feb 2003
Posts: 4,201
Likes: 15
From: Palm Beach Gardens FL
St. Jude '03 thru 14,'25
Default Re: LS1 weight savings over LT1 (xs650)

100 lbs somewhere is a lot of weight to be saved.



A whole bleeping bunch. Production weight savings are usually in measured in ounces and a few pounds here and there and cost a lot.
I thought I read here somewhere that on a C4, every eight pounds +/- is equal to about one HP....


[Modified by tobijohn, 11:37 PM 4/20/2004]
Reply
Old Apr 21, 2004 | 12:10 AM
  #11  
BrianCunningham's Avatar
BrianCunningham
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2001
Posts: 30,858
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Default Re: LS1 weight savings over LT1 (tobijohn)

Guys, it actually weighs in more believe it or not.

There's a local shop here and had them both on a scale.

Why?
The LS1/6 is a bigger engine! and it's pretty beefy o boot.
Reply
Old Apr 21, 2004 | 12:14 AM
  #12  
corvetteronw's Avatar
corvetteronw
Race Director
Supporting Lifetime
20 Year Member
Veteran: Army
St. Jude 10 Year Donor
Liked
 
Joined: Feb 2003
Posts: 16,475
Likes: 270
From: Kingman AZ
Cruise-In VII Veteran
Cruise-In VIII
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
Default Re: LS1 weight savings over LT1 (NitrousSam)

Can't you just buy an aluminum 350 block and bolt the LT1/LT4 parts on it? Not sure, but how much weight would that save? :confused:
Reply
Old Apr 21, 2004 | 12:17 AM
  #13  
xs650's Avatar
xs650
Melting Slicks
Supporting Lifetime
 
Joined: Nov 2003
Posts: 3,375
Likes: 1
From: Northern CA
Default Re: LS1 weight savings over LT1 (tobijohn)

100 lbs somewhere is a lot of weight to be saved.

I thought I read here somewhere that on a C4, every eight pounds +/- is equal to about one HP....
3400 lb car/340hp engine = 10 lb/hp Dump 10 lb and you get 1 hp worth of acceleration at low speed.
Reply
Old Apr 21, 2004 | 12:21 AM
  #14  
BrianCunningham's Avatar
BrianCunningham
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2001
Posts: 30,858
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Default Re: LS1 weight savings over LT1 (corvetteronw)

Can't you just buy an aluminum 350 block and bolt the LT1/LT4 parts on it? Not sure, but how much weight would that save? :confused:
Unfortunately NO.
LT1/4's are reversed cooled the blocks are unique.
Reply
Old Apr 21, 2004 | 12:23 AM
  #15  
tobijohn's Avatar
tobijohn
Bench Racer
Supporting Member
20 Year Member
St. Jude 10 Year Donor
Liked
Loved
 
Joined: Feb 2003
Posts: 4,201
Likes: 15
From: Palm Beach Gardens FL
St. Jude '03 thru 14,'25
Default Re: LS1 weight savings over LT1 (BrianCunningham)

How about an aluminum replacement for the L98? And aren't the aluminum SBs really expensive?


[Modified by tobijohn, 12:23 AM 4/21/2004]
Reply
Old Apr 21, 2004 | 12:24 AM
  #16  
corvetteronw's Avatar
corvetteronw
Race Director
Supporting Lifetime
20 Year Member
Veteran: Army
St. Jude 10 Year Donor
Liked
 
Joined: Feb 2003
Posts: 16,475
Likes: 270
From: Kingman AZ
Cruise-In VII Veteran
Cruise-In VIII
St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
Default Re: LS1 weight savings over LT1 (tobijohn)

How about an aluminum replacement for the L98? And aren't the aluminum SBs really expensive?


[Modified by tobijohn, 12:23 AM 4/21/2004]
:lurk:
Reply
Old Apr 21, 2004 | 12:35 AM
  #17  
BrianCunningham's Avatar
BrianCunningham
Team Owner
25 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2001
Posts: 30,858
Likes: 293
From: Boston, Dallas, Detroit, SoCal, back to Boston MA
Default Re: LS1 weight savings over LT1 (corvetteronw)

For the $$$ you could build a 434, or a 488ci :eek:
http://www.donovanengineering.com/Bl...mallBlock.html
Reply

Get notified of new replies

To LS1 weight savings over LT1

Old Apr 21, 2004 | 01:02 AM
  #18  
tobijohn's Avatar
tobijohn
Bench Racer
Supporting Member
20 Year Member
St. Jude 10 Year Donor
Liked
Loved
 
Joined: Feb 2003
Posts: 4,201
Likes: 15
From: Palm Beach Gardens FL
St. Jude '03 thru 14,'25
Default Re: LS1 weight savings over LT1 (BrianCunningham)

I didn't see any pricing on the site. Did I just miss it? :confused:
Reply
Old Apr 21, 2004 | 09:10 AM
  #19  
NitrousSam's Avatar
NitrousSam
Thread Starter
Melting Slicks
Supporting Lifetime Gold
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2003
Posts: 2,951
Likes: 3
From: Mount Vernon OH
Default Re: LS1 weight savings over LT1 (tobijohn)

I doubt that 80 lbs is only equal to 1+/- horsepower. Remember that the general rule of thumb is for every 100 lbs you remove from a door car you will typically see a 1/10 reduction in your e.t. There are instances when you remove front end weight and gain even more benefit because it allows the car to weight transfer much quicker. Actually if you just move your current engine further back in a car (6-8 inches) it can make a big difference in how the balance of the car and how it transfers weight when you launch it.
Reply
Old Apr 21, 2004 | 09:15 AM
  #20  
NitrousSam's Avatar
NitrousSam
Thread Starter
Melting Slicks
Supporting Lifetime Gold
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Oct 2003
Posts: 2,951
Likes: 3
From: Mount Vernon OH
Default Re: LS1 weight savings over LT1 (corvetteronw)

corvetterromw: I like your idea and I have a 1984 so I do not have the LT1 or LT4 engine but I wanted to get an idea of weight savings. Swapping from my engine to either the LT1 or the LS1 will save me a bunch of weight. About a week ago I placed a post in the C4 parts for sale/wanted along with a few other racing sites hoping to locate a Dart, World, Donavon or Brodix block. You and I were thinking alike...the issue is the price of the block is $3,000-$4,000 and you can buy a used complete LS1 used for $3500+/- and I was just considering which might be the better way to go and before I made my final decision I wanted to make sure I would get the weight reduction from the LS1. :)


[Modified by NitrousSam, 2:21 PM 4/21/2004]
Reply



All times are GMT -4. The time now is 03:58 PM.

story-0
5 Best & 5 Most Overrated Corvette Track Packages of All Time!

Slideshow: The 5 best and 5 most overrated Corvette track packages ever.

By Joe Kucinski | 2026-06-09 12:46:45


VIEW MORE
story-1
Every 2027 Corvette Engine Explained

Slideshow: Every 2027 Corvette engine explained

By Joe Kucinski | 2026-06-09 12:16:31


VIEW MORE
story-2
Designer Imagines A Corvette That Looks More Like a Corvette Than the Corvette

Slideshow: A Jaguar designer's personal project imagines what a modern front-engined Corvette might look like if Chevrolet revisited the golden age of the Stingray.

By Verdad Gallardo | 2026-06-08 19:53:43


VIEW MORE
story-3
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-4
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-5
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-6
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-7
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-8
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-9
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE